A substantially tubular end-loadable carton (200) comprising a top wall (212), an inwardly-extending structure (X2) foldably adjoining said top wall (212) stowable in a substantially flat-face position with an underside of said top wall (212), and a top end flap (X1) connected to said inwardly-extending structure is translated in a direction (F) and a flap deflector (310) is disposed to engage and deflect the end flap (X1a) downwardly and thereby cause the inwardly-extending structure (X2a) to pivot upwardly inside the carton (200) into substantially flat-face position with the underside of the top wall (212) of the carton (200).